A test bench for biogas slurry spreading

Abstract

The invention relates to a biogas slurry spreading experiment bench which comprises a rack, a liquid storage box, a plurality of gas storage boxes and a ratchet device. A biogas slurry inlet is formedin the top of the liquid storage box, a row of biogas slurry discharge holes are formed in the bottoms of the boxes, the bottoms of the biogas slurry discharge holes are connected with hoses, the hoses are inserted into the gas storage boxes and can move rectilinearly along the gas storage boxes, and the hoses correspond to the gas storage boxes one to one, and the joint of the hoses and the gasstorage boxes is sealed; the ratchet device comprises pawls, a ratchet and a clamping ring, the clamping ring sleeves the hoes, an installing base is arranged on the rack, and the pawls are hinged tothe rack; a threaded hole is formed in the installing base, a threaded shaft which extends in the axis direction of the ratchet and is matched with the threaded hole is arranged on the ratchet, the clamping ring is fixed to the installing base, and the threaded shaft penetrates through the side wall of the clamping ring and extends towards the hoses. The loss in nitrogen in the biomass slurry mechanical spreading process can be measured, and therefore the loss conditions of nitrogen during subsoil irrigation and biomass slurry spraying can be conveniently compared.

Description

technical field [0001] The invention relates to an experimental bench for biogas slurry spreading, which belongs to the technical field of agricultural machinery. Background technique [0002] At present, biogas residues produced in domestic biogas projects are returned to the field as organic fertilizers. There are certain problems in the treatment of biogas slurry. In southern my country, the combination of planting and breeding is used for irrigation, which is not suitable for the current situation of many retail households and small scale of animal husbandry in my country. It brings certain limitations; in the north, a machine for spreading biogas slurry is developed, which is directly transported to the field for spreading and applying. The existing machinery basically sends the biogas slurry into the distributor through the tank, and finally spreads it through the hose or nozzle. The spraying of the nozzle causes the loss of nitrogen, and the hose sends the biogas slurr...

AI Technical Summary

Problems solved by technology

The existing machinery basically sends the biogas slurry into the distributor through the tank, and finally spreads it through the hose or nozzle. The spraying of the nozzle causes the loss of nitrogen, and the hose sends the biogas slurry into the shallow ditch. cover soil

[0003] Biogas slurry has been gradually used as a kind of fertilizer in our country. At the same time, it has been proved by experiments that the use of biogas slurry has played a significant role in crop growth and increase production. It has reduced environmental pollution to a certain extent and improved rural waste resources. In order to maximize the use of biogas slurry, however, with the increasing amount of domestic biogas slurry, how to efficiently treat biogas slurry has become an urgent problem. Pick the field for throwing, and the large-scale field is equipped with an irrigation system for irrigation or a simple machine is sent to the field for spreading. In the face of the irrigation system that cannot be promoted due to factors such as labor intensity and environmental factors, biogas slurry is mechanically applied. It has become an inevitable trend, but some gas nitrogen will inevitably be scattered into the atmosphere during the spreading process, resulting in nitrogen loss, and there is no relevant research on how to measure nitrogen loss

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